William Thomas Sinclair, 11th Baron of Roslin
1408 - 1482 (74 years)-
Name William Thomas Sinclair Title 11th Baron of Roslin Birth 1408 Caithness, Scotland 
Gender Male Death 29 Mar 1482 Fifeshire, Scotland Burial Fifeshire, Scotland Person ID I8423 footsteps Last Modified 1 Jul 2025
Father Henry Sinclair, b. 24 May 1373, Orkney Islands, Scotland d. 1 Feb 1422, Midlothian, Scotland (Age 48 years) Relationship natural Mother Egidia Jill Douglas of Orkney, Countess Sinclair , b. 1388, Dumfries-shire, Scotland d. 1438, Orkney Islands, Scotland (Age 50 years) Relationship natural Marriage 17 Feb 1404 Perthshire, England Family ID F872 Group Sheet | Family Chart
Family 1 Marriage Bef 15 Nov 1456 Scotland Children + 1. Marjory Sinclair Of Orkney, b. Abt 1445, Midlothian, Scotland d. 1508, Scotland (Age 63 years) [Father: natural]Family ID F215 Group Sheet | Family Chart Last Modified 1 Jul 2025
Family 2 Marjory Sutherland, b. Abt 1436, Dunbeath, Caithness, Scotland d. Abt 1480 (Age 44 years) Marriage 15 Nov 1456 Children + 1. William Sinclair, 2nd Lord of Sinclair , b. 1430, Caithness, Scotland d. 28 May 1480, Fifeshire, Scotland (Age 50 years) [Father: natural] [Mother: natural]+ 2. Eleanor Sinclair, Lady , b. 19 Apr 1457, Fifeshire, Scotland d. 21 Mar 1518, Perthshire, England (Age 60 years) [Father: natural] [Mother: natural]+ 3. Oliver Sinclair of Roslin, b. 1460, Fifeshire, Scotland d. 1509, Caithness, Scotland (Age 49 years) [Father: natural] [Mother: natural]Family ID F10320 Group Sheet | Family Chart Last Modified 1 Jul 2025
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Notes
1st Earl of Caithness (1455-1476), last Earl (Jarl) of Orkney (1434-1470 de facto, -1472 de jure), 2nd Lord Sinclair and 11th Baron of Roslin was a Norwegian and Scottish nobleman and the builder of Rosslyn Chapel, in Midlothian.
In 1436 was Admiral of Scotland when he conveyed Princess Margaret of Scotland to the Dauphin of France (Louis XI)
Earl of Orkney, invested by Eric, King of Norway